[1] Univ Hosp Leuven, Digest Oncol, Leuven, Belgium
[2] Katholieke Univ Leuven, Leuven, Belgium
[3] Univ Naples 2, Dept Expt & Clin Med & Surg, Naples, Italy
[4] Aix Marseille Univ, Assistance Publ Hop Marseille, Dept Digest Oncol, Marseille, France
[5] Heidelberg Univ, Univ Med Mannheim, Interdisziplinaren Tumorzentrum, Mannheim, Germany
[6] Univ Texas SW Med Ctr Dallas, Div Hematol & Oncol, Dallas, TX 75390 USA
[7] Hosp Univ Virgen del Rocio, Dept Med Oncol, Seville, Spain
[8] Mayo Clin, Dept Oncol, Rochester, NY USA
[9] Bayer Pharma AG, Global Pharmacovigilance & Risk Management, Berlin, Germany
[10] Bayer Pharma AG, Global Clin Dev Oncol Ophthalmol & Neurol, Berlin, Germany
[11] Bayer HealthCare Pharmaceut, Clin Stat, Whippany, NJ USA
[12] Univ Pisa, Dept Med Oncol, Pisa, Italy
[13] Fdn Poliambulanza, Dept Oncol, Brescia, Italy